Patents by Inventor Nobutake Tanaka

Nobutake Tanaka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Connector having axially slit end for gripping optical fiber
    Patent number: 4779949
    Abstract: This invention relates to a connector for optical fiber used for optical communication parts, especially to a plug of the connector, comprising an inner tube into which an endportion of an optical fiber cord, whose cover is peeled off, is inserted and which is formed with axial slittings; and an outer tube being fitted onto the inner tube and made of a solid material, the inner tube being reduced in diameter at the portion having the slittings, thereby fixing the optical fiber thereto.
    Type: Grant
    Filed: April 1, 1986
    Date of Patent: October 25, 1988
    Assignees: Dainichi-Nippon Cables, Ltd., Nippon Mining Co., Ltd.
    Inventors: Eiji Iri, Masatoshi Tabira, Tsuneo Kiriyama, Nobutake Tanaka, Toshiaki Minaki